Message type: E = Error
Message class: 37 - Screen Painter
Message number: 521
Message text: & contains deep structures. Unable to copy.
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37521
- & contains deep structures. Unable to copy. ?The SAP error message 37521 typically indicates an issue related to deep structures when trying to copy or manipulate data in ABAP programs or data dictionary objects. This error often arises when the system encounters difficulties in handling complex data structures that contain nested tables or deep hierarchies.
Cause: Deep Structures: The error is primarily caused by the presence of deep structures in the data being processed. Deep structures are those that contain nested tables or structures, which can complicate data manipulation. Incompatible Data Types: The data types being copied may not be compatible, especially if they involve complex nested structures. Memory Limitations: Sometimes, the system may run into memory limitations when trying to handle large or complex data structures. Incorrect Field Mapping: If the field mapping between the source and target structures is not correctly defined, it can lead to this error.
Solution: Simplify Structures: If possible, simplify the data structures involved. Avoid deep nesting of
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